However the book is interesting in two points--its very good explanation of the concept of truename, and its use of a wizard whose only talent is the ability to enhance other caster's spells. The character is barely able to cast spells on his own, but creates a 'resonance' that amplifies other wizards' power incredibly.

Worth a read if you have nothing better to do, or really like Yolen. It's certainly a lot better than most of what passes for "children's literature" these days, but don't expect too much from it.